How often do US aircraft carrier planes fly.?

there flight operations days @ sea. not every aircraft flies everyday. there few aircraft in hangar regular maintenance or make more room on flight deck. when see every single aircraft of air wing on 'roof', arranged type, done photo. times though, hangar bay emptied out because needed other event uso show, military function or reception. hangar bay enormous space , place on carrier can gather of crew in 1 place indoors. there many uses besides aircraft maintenance. sort of our 'parade ground'.

i have seen pictures of aircraft carriers , on flight deck, lots of aircraft out of hangars?
why crew of aircraft carrier bother getting aircraft out hangar amd put on flight deck if aren't going fly it? or photos?

thanks

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